Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
080030goodexcellent81excellent
070036goodexcellent81excellent
060027goodexcellent81excellent
050029goodexcellent81excellent
040032goodexcellent81excellent
030022goodexcellent81excellent
020051lightly pollutedexcellent81excellent
010044lightly pollutedexcellent81excellent
000035goodexcellent71excellent
230045lightly pollutedexcellent81excellent
220043lightly pollutedexcellent71excellent
210032goodexcellent71excellent
200024goodexcellent61excellent
190026goodexcellent61excellent
180024goodexcellent61excellent
170019goodexcellent61excellent
160026goodexcellent61excellent
150029goodexcellent61excellent
140029goodexcellent71excellent
130026goodexcellent71excellent
120026goodexcellent71excellent
110020goodexcellent61excellent
100028goodexcellent61excellent
090025goodexcellent51excellent